89047913 has 4 divisors (see below), whose sum is σ = 89645700. Its totient is φ = 88450128.

The previous prime is 89047879. The next prime is 89047943. The reversal of 89047913 is 31974098.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3429904 + 85618009 = 1852^2 + 9253^2 .

It is a cyclic number.

It is not a de Polignac number, because 89047913 - 2¹⁰ = 89046889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89047943) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 298670 + ... + 298967.

It is an arithmetic number, because the mean of its divisors is an integer number (22411425).

Almost surely, 2^89047913 is an apocalyptic number.

It is an amenable number.

89047913 is a deficient number, since it is larger than the sum of its proper divisors (597787).

89047913 is a wasteful number, since it uses less digits than its factorization.

89047913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 597786.

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 89047913 is about 9436.5201743015. The cubic root of 89047913 is about 446.5546147852.

The spelling of 89047913 in words is "eighty-nine million, forty-seven thousand, nine hundred thirteen".